package com.ytq.pratice;

/**
 * Hello world!
 */
public class App {
    public static void main(String[] args) throws CloneNotSupportedException {
        System.out.println("Hello World!");

        App app = new App();

         App ap1 = (App) app.clone();



    }

    @Override
    protected Object clone() throws CloneNotSupportedException {
        return super.clone();
    }
}
